"Exit 0."  I-90.
Crossing lookout pass.
Idaho Montana border.
Here one also crosses a time zone boundary.  If this was less than an hour after New Year's, one could "travel back to yesteryear" by going back to Pacific Time.  See my thoughts on a time travel paradox.

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Reader comments

I just came across your Web site.  I had been doing some trivial research on the highest exit number in the United States (which seems to be Exit 880 on I-10 near the TX/LA border).  Then I decided to see if there was such thing as an Exit 0 at the opposite end as indicated on Mapquest.  I found your photo of I-90's Exit 0, (Montana Idaho border) so it proves Exit O's can indeed exist!  It's one of those weird-but-true things I guess.  I also wondered how time zone boundaries were marked along highways.  So I just wanted to thank you for your information.

Greg D. from
Pennsylvania


BTW, there is an Exit 0 on I-10 at the TX/NM border, for the town of Anthony.  The town itself spreads across both states, with only a small sign on Main St. as demarcation.

Paul, now lives on Whidbey Island.

Photos of Robert's bike trip to the Great Lakes